php模拟发送post请求

第一种方法：

function send_post($url, $post_data)
    {
        $options = array(
            'http' => array(
                'method' => 'POST',
                'header' => 'Content-type:application/x-www-form-urlencoded',
                'content' => http_build_query($post_data),
                'timeout' => 15 * 60 // 超时时间（单位:s）
            )
        );
        $context = stream_context_create($options);
        $result = file_get_contents($url, false, $context);
        return $result;
    }

第二种方法：

function send_post($url, $header, $post_data)
    {
        $curl = curl_init();//初始化curl
        curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
        curl_setopt($curl, CURLOPT_HEADER, 0);//返回response头部信息
        curl_setopt($curl, CURLOPT_URL, $url);//抓取指定网页
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($curl, CURLOPT_POST, true);
        curl_setopt($curl, CURLOPT_POSTFIELDS, json_encode($post_data));
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        $result = curl_exec($curl);
        curl_close($curl);
        return $result;
    }